Insights: Migration

Seasonal trends and migration tracking.
In plain English
  • 8 species arrived in the last two weeks after being absent — most recently Brown Creeper.
  • Ruby-throated Hummingbird has gone quiet: last heard 32 days ago after 879 detections — 2 regulars are on this list.
  • 30-day diversity is High (Shannon index 2.478), up 36 species compared with this month last year.

🦅 Migration & Seasonal Patterns

🆕 New Arrivals (Last 14 Days) iSpecies appearing in the last 14 days that were absent for the previous 2 weeks. Useful for tracking return migration.
Brown Creeper
First seen: Oct 17
1 detections
White-throated Sparrow
First seen: Oct 17
5 detections
Green-winged Teal
First seen: Oct 16
3 detections
Orange-crowned Warbler
First seen: Oct 15
13 detections
Northern Pintail
First seen: Oct 13
1 detections
Pine Siskin
First seen: Oct 13
2 detections
Common Grackle
First seen: Oct 9
9 detections
Pileated Woodpecker
First seen: Oct 8
1 detections
🔇 Gone Quiet iRegular residents that haven't been detected in at least 14 days. This may indicate they have migrated away or changed territories.
Ruby-throated Hummingbird
879 total · Last: Sep 20
32d ago
White-eyed Vireo
103 total · Last: Sep 14
38d ago
📅 Year-over-Year Arrival Comparison (2025 vs 2026) iTracking if migratory species arrived earlier or later than they did in the previous calendar year.
Not enough multi-year data yet —
🗓️ Seasonal Presence iClassification Guide:
• Year-round: Detected across 9+ months
• Seasonal: Detected across 3-8 months
• Transient: Detected <3 months

Data Accuracy Disclaimer:
These classifications may be inaccurate if the station has been running for less than a full year, as it lacks seasonal historical context.

Bar height is expected frequency. Purple highlights are actual detections.
House Finch
1,717 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Crow
1,644 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eastern Phoebe
1,206 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Carolina Chickadee
1,145 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Ruby-throated Hummingbird
879 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Blue Jay
769 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Carolina Wren
734 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Northern Cardinal
697 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Tufted Titmouse
445 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Downy Woodpecker
238 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Red-bellied Woodpecker
236 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great-tailed Grackle
205 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Northern Flicker
150 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Cooper's Hawk
122 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White-eyed Vireo
103 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Mourning Dove
69 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Red-shouldered Hawk
61 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Brown Thrasher
43 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
House Sparrow
40 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Collared-Dove
25 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Rock Pigeon
16 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Orange-crowned Warbler
13 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Ruby-crowned Kinglet
11 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Grackle
10 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eastern Bluebird
10 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Brown-headed Cowbird
8 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Golden-crowned Kinglet
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Red-tailed Hawk
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Killdeer
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White-throated Sparrow
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Green-winged Teal
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Coot
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Fish Crow
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Northern Rough-winged Swallow
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Pine Siskin
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Summer Tanager
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Barred Owl
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Bewick's Wren
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Blue-gray Gnatcatcher
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Brown Creeper
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Canada Goose
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Greater Yellowlegs
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Mallard
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Northern Pintail
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Pileated Woodpecker
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D